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Spontaneous radio isn't as attractive as it used to be.

Consider Pandora Media(NYSE:P), the streaming radio service whose raison d'etre is to introduce you music you might like. The stock briefly fell 15% this week after reporting disappointing guidance. My Motley Fool Rule Breakers teammate Rick Munarriz did the math and found that far too few are paying for a Pandora subscription.

Why are we surprised by this? Pandora isn't dealing in original programming the way that Sirius XM Radio(NASDAQ:SIRI) is. Meanwhile, on-demand audio is also better than it's ever been thanks to podcasts. Find out more about how and why this format is gaining popularity in the video below.

Author

Tim Beyers first began writing for the Fool in 2003. Today, he's an analyst for Motley Fool Rule Breakers and Motley Fool Supernova. At Fool.com, he covers disruptive ideas in technology and entertainment. Find him online at timbeyers.me or send email to tbeyers@foolcontractors.com. For more insights, follow Tim on Twitter.